I am relatively new with regard to bitcoin but what I have noticed is that a lot of people just invest on it and then cash in when they feel like it is already enough to make a profit. I do not think that this will not be great in the long run because of it being unstable. So what can be done to make it stable?
a market that is not controlled by laws and anti-manipulation mechanisms, I think it will be in no way able to stop those who have a lot of money.
But I think we really shouldn't expect that bitcoin prices will be stable. miners will not like this because bitcoins are meant to prevent inflation and its price will rise day by day as it gets more and more rare.